Fuel-burner attachment for furnaces or boilers



Feb. 4, 1930. Y J. w. TERN7-\U FUEL BURNER ATTACHMENT FOR FURNACES 0BBOILERS Filed Sept. 13. 1928 3 Sheets-Shee l Feb. 4, 1930. J. w. TERNAU1,746,061

FUEL BURNER ATTACHMENT FOR FURNACES 0R BOILERS Filed. Sept. 15, 1928 aSheets-Sheet 2 C-wry A TTORNEV Feb.4, 1930. ,J.W.QTERNAU 1 1,746,061

FUEL BURNER ATTACHMENT FOR FURNACES OR BOILERS Filed Sept. 15, 1928 5Sheets-Sheet 3 ulllpllnrnrlllllu 11v VENTOR Patented Feb. 4, 1 930 4 v 1a UNITED STATES. PATENT 'OFFICE l JOHN winLrAM TEItNAU, ornnwnonnomconnnorrcur i FUEfl-BURNERATiAQI-IMENT FOR rnnrmcns on BOILE BSa I Applicationiiledseptember 1s, 192s. Serial m3. 305,638. a V Thisinvention relates to improvements in Fig.5 is a front elevation of ayokebracket. fuel burners foruse in furnaces to increase As illustrated, myimproved and novel furthe combustion of the fuel and heating canaceattachment'comprises a casting or caspacityof the furnace, and inraising steam mg 10 having an end flange 11 by means of in stationaryand'marine or other boilers, which the device is adapted to be attached55 a and it is the principal object of my invention to a furnace orboiler front indicated at 12. to provide a' furnace or boiler attachmentAt an appropriate place the casing is pro; producing w aximum of h t,by. mini vided with a lighting ofl hole 13 equipped mum consumption offuel, such as oil under with a movable cover 14. j

- 1'0 pressure forced through a burner and mixed A coverl5 having ahandle 16 formed 60 I I i adapted to bejreadily attached to any size ofwith has at its inner apex a perforated boss with airunder pressureproducedby a fan therewith is hingedly connected at one'end,

driven by a motor, as for instance an electric as at 17 to the casing10," and has formed otorj v a I V therewith intermediate its ends asubstan- '{Anotherob'ject of myinvention is the protially V-shaped ringadapted to engage, a V V vision of a furnace attachment of the abovesimilarly shapedfdepression or groove in 65v type; of comparativelysimple "construction, asbestos packing 18 embeddedin the frontyet-durableand efficient in its operation for wall 19 of the casing 10of the'furnace at the purpose in view, an attachment which tachment. a Iv will greatly reducethe'cost of repairing and A bracket 20 is attachedat one end to an 20 of replacements for worn parts, as each part innershoulder of the casing, extends into the 70 of the attachmentis'interchangeable and same, and at itsoppositeend is secured toportable. v I I alug or lugs 22. A further object of my inventionjis thet A yoke23 constituting'a holder for an oil provision of a furnace orboiler attachment burner body 24, and parts associated there- 5 furnacesor boilers of the present 'construc- 25 formed therewith equipped withinner tions without materially changing the furthread allowing thepassage of a screw bolt nace or boiler construction, and in which the 26which carries at its outer end a hand wheel air and fuel are imparteda'whirling motion 27 vwhile its inner pointed end engages the 30 ensuringaperfect combustion. 7 burner body 24.

A still further object of my invention is the V To the inner end of theyoke a two armed provision of a furnace or boiler attachment bracket'28is fsecuredby means of bolts and ofthis character which is equipped witha nuts 29 carrying suitable washers while the Y novel and improvedburner plug and tip. outer. ends of the bracket arms are slotted, as

i Y These and other objects and advantages of at 30, to allow thesecuring of the yoke and 85 my invention will become more fully knownburner therein tothe bracket 20 by means of as the description thereofproceeds and will screws 31 carrying wing nuts 32 and encased"thehbespecifically defined in the appended .in asbestos oil tightpackings 33, so that the V claims v 1. I burner and its holder yoke caneasily be taken I i In he'accompanying drawings forming a apart andremoved as a complete unit-from 90 material part of this disclosure; theinterior ofcasing or attachment 10.'

Fig. '1 is a top plan v ew, partlyin section The oil is supplied underpressure" to the of the boiler or furnace attachment, con burner body bymeans of the oil supply pipe structed according to myinvention. 34 inblock 34 adapted to be centered therein f Fig.2 is a top planview of afront cover by means of screws34, and isfed through plate forthe device,of Figure 1 channel 35 in theburner 'bodyto the pipe .Fig. 3 is asectionthrough the attachment 36 provided at 1ts furnace end with anozzle on line3-I-'3ofFigure1. ortip 37.e a j I Fig. 4 is aninner front viewoftheburner This nozzle comprises a burner plug .38 i V screwed upon the endof pipe 36, which has formed therewith three small openings 39 drilledon an angle from the face of the burner plug to the center hole throughwhich the oil is forced through the center opening to the whirling space40 of the tip 37 It will be clear that the openings are made to size,and in accordance with the amount of fuel necessary to be consumed, andto produce the amount of heat required. This is also the case with theselection of the size of the Whirling space 40, and the size of the holein the center of the burner tip 37.

The angular-face of the burner plug 38 is grooved, and the angular innerseat of the burner tip is also grooved, to ensure an oil' tight jointwhen the tip is screwed onto the plug, thereby only allowing the fueloil topass through the angular grooves 39 cut in the face of the burnerplug 38, and preventing leakage through the threaded section of plug andtip. 7

The objectof cutting the grooves in the burner plug 39 at an angle andentering the whirling chamber is to give the fuel oil entering underpressure, a whirling motion and the oil being forced through a small.hole in the center of the burner tip 87 produces a cone spray of oilfilm on entering the furnace or boiler while the air forced into thefur: nace by the fan device hereafter to be more fully described formstherewith a combustible mixture, and thereby produces combustion whenignited. I V Deflector vanes or baffie plates a'l'are arranged at therear part of the attachment to ensure a suitable distribution of theair.

The air is forced into the attachment casing by a fan arrangementcomprising a motor 42 attached to the casing door 15 my means of abracket 48 and having its shaft 4 f equipped inside the door 15 with afan 45.

The operation of my novel and improved furnace attachment will beclearly understood from the above description and simultaneousinspection of the drawing and it will be clear that the air forced bythe fan into the furnace will be suitably deflected by vanes 41, whilethe fuel will enter the furnace in a whirl or spray imparted to itduring its passage under pressure through the peculiarly shaped burnerplug and tip so as to produce a combustible I mixture developing amaximum of heating 7 capacity with a minimum of fuel consumption.

Itwillbe understood that I have described and shown as one example ofthemany possible ways of practically constructing my at tachment itspreferred form only, and that I may make such changes in its generalarrangement and in the construction of its minor details ascome withinthe scope of the appended claims without departure from the spirit of myinvention and the principles involved.

Having thus described my invention, what class described adapted to beattached to a furnace or boiler, comprising a casing having a shoulderformed therein, an asbestos ring at the front endof said casing having aV-shaped groove formed therein, a door hinged to the front end of theattachment, an innerring formed with said door equipped with a V-shapedinner face adapted to engage and fit into the groove of said ring, abracket attached at one endto the shoulder of said attachment, and tolugs in the attachimparting to the oil a whirling motion before itsentrance into the furnace, a means for'supply ng a1r to saidoil, and ameans for mpart- .ing to said air a whirling motion before its mixturewith the oil.

2. A furnace or boiler attachment of the class described adapted to beattached to a furnace or boiler, comprising a casing having a shoulderformed therein, an asbestos ring at the front end of said casing havinga V-shaped groove formed therein, a door hinged to the front, end of theattachment, an inner ring formed with said door equipped with'a V-shapedinner face adapted to engage and lit into said ring, a bracket attachedat one end to the shoulder o'f'said attachment, and to lugs in theattachment at its opposite end, a burner, a means for supplying oilunder pressure to said'burner, a yoke, a per forated boss formed withthe outer end 'of said yoke, a bolt screwed through said yoke, engagingsaid burner with its inner pointed end, a hand'wheel at the outer end ofsaid bolt, a two armed slotted bracket secured to the inner end of saidyoke, and means engaging the slots 'of said bracket for exchangeablyholding said burner in the attachment, a means on said burner forimparting to the oil a whirling motion before its entrance-into thefurnace, a means for supp-lying air to said oil, and a means forimparting to said air a whirling motion before its admixture with theoil. r

3. A furnace or boiler attachment of the class'described adapted tobeattached to a furnace or boiler, comprising a casing having a shoulderformed therein, anasbestos ring at the front end of said casing having a\/-shaped. groove formed" therein, a door hinged to the frontend of theattachment, an inner ring formed with said door equipped with a V-shapedinner face adapted to en- 7 gage and fit into said ring, a bracket ataperforated boss formed with the outer end of said yoke, a bolt screwedthrough said yoke engaging said burner with its inner pointed end, ahand wheel at the outer end of said bolt, a'two armed slotted bracketsecured to the inner end of said yoke, and

' means engaging'the slots of said bracket for with a V-shaped innerface adapted to en-i' exchangeably holdingsaid burner in'the attachment,a nozzle includin a burner plug having an angular, grooved ace,connections between said nozzle and the burner body, a

burner tip adapted to be screwed upon said I plug, an inner angulargrooved seat formed I with said tip for imparting to the oil a whirlingmotion before its entrance into the furnace, a means for supplying airto the oil, and a means for imparting to said air a whirling motionbefore its admixture with the oil.

- 4:. A furnace or boiler attachment of the class described adaptedtobe'attached to a furnace or boiler, comprising a casing having ashoulder formed therein, an asbestos ring at the front end of saidcasing having a V-shaped groove formed therein, a door hinged to thefrontend of the attachment, an inner ring formed with said door equippedgage and fit into said ring, a bracket attached at one end to theshoulder of said attachment, and to lugs in the attachment, at itsopposite end, a burner, ameans for supplying oil under pressure to saidburner, a yoke, a'perforated boss formed with the outer end of saidyoke, a bolt screwed through said-yoke'engaging said burner with itsinner pointed end, a hand wheel at the outer end of said bolt, a twoarmed'slotte'd bracket secured to the inner end of'said yoke, and meansengaging the slots of said bracket for exchangeably holding said burnerin the attachment, a nozzle including a-burner plug having anangulargrooved face, connections between said nozzle and the burner body, aburner tip adapted to be screwed upon said plug,'an inner angulargrooved seat for imparting to the oil a whirling motion before itsentrance 7 intothe furnace, a motoroperated fan within the attachmentfor forcing'air'intothe same, and deflector vanes orbaflle platesarranged at the rear part of the attachment to impart to said air awhirling motion before its admixture with the oil.

Signed at New London, in the county of d New' London and State ofConnecticut, this 6th day of September, A.'D. 1928.

JOHN WILLIAM ERNAU.

